A PRELIMINARY INVESTIGATION OF EFFECTS OF WIND AND WAVE ENVIRONMENTAL PARAMETERS ON LOADS OF 22 MW OFFSHORE WIND TURBINE STRUCTURES

Li Zhi; Qiu Xu; Luo Yuxiao; Shi Yuanfeng; Dai Kaoshan; Shang Jinghan

doi:10.19912/j.0254-0096.tynxb.2025-0672

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (9) : 717-725. DOI: 10.19912/j.0254-0096.tynxb.2025-0672

A PRELIMINARY INVESTIGATION OF EFFECTS OF WIND AND WAVE ENVIRONMENTAL PARAMETERS ON LOADS OF 22 MW OFFSHORE WIND TURBINE STRUCTURES

Li Zhi¹, Qiu Xu², Luo Yuxiao¹, Shi Yuanfeng¹, Dai Kaoshan^1,3, Shang Jinghan⁴

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Abstract

To investigate the influence of wind and wave environmental parameters on the design loads of multi-megawatt offshore wind turbines, offshore wind form environmental parameters from Chinese maritime areas were selected as variables. Dynamic response, extreme loads and equivalent fatigue loads of the IEA 22 MW offshore monopile reference turbine were computed using OpenFAST. Based on regional marine characteristics, turbulence intensity and wind shear coefficient were categorized into three levels, and the joint probability distributions of wind and waves for each region were established using Copula functions. Analysis of variance and random forest methods were then employed to assess the influence of various environmental parameters on the components of the equivalent fatigue loads. Furthermore, by analyzing the load responses under extreme conditions, the effects of a 50-year return period extreme wind speed, significant wave height and wave period on the loads at the mudline were examined.

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offshore wind turbines / fatigue load / sensitivity analysis / environmental parameters / OpenFAST / wind-wave joint probability distribution

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Li Zhi,Qiu Xu,Luo Yuxiao,Shi Yuanfeng,Dai Kaoshan,Shang Jinghan. A PRELIMINARY INVESTIGATION OF EFFECTS OF WIND AND WAVE ENVIRONMENTAL PARAMETERS ON LOADS OF 22 MW OFFSHORE WIND TURBINE STRUCTURES[J]. Acta Energiae Solaris Sinica. 2026, 47(9): 717-725 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0672

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